In patients with on-track shoulder HilleSachs lesions, the addition of remplissage using a double-pulley technique to Bankart repair improves outcomes including residual apprehension and without loss of external rotation. A caveat is that measurement of both the HilleSachs lesion and glenoid bone loss may be inconsistent. A second caveat is that determination of the glenoid track can be affected by scapular positioning. Not all "on-track" lesions are alike. In terms of outcome assessment, apprehension has up to 95% specificity for anterior shoulder instability and is a key finding in determining the results of shoulder stabilization. Recurrent instability may not be as sensitive of an outcome measure, because patients will avoid positions of apprehension. Finally, remplissage should be used cautiously in peripheral track lesions. For smaller HilleSachs lesions, remplissage can provide extraordinary success, and for larger lesions that are close to engaging, glenoid bone loss must also be treated, especially in a younger, active patient.